[OpenICC] Oyranos APIs update

[Kai-Uwe Behrmann]

Am 28.09.05, 01:20 -0600 schrieb Chris Murphy:

> 
> On Sep 28, 2005, at 1:20 AM, Kai-Uwe Behrmann wrote:
> 
> > Am 28.09.05, 00:41 -0600 schrieb Chris Murphy:
> > 
> > 
> > > This is why I do not like referring to "well behaved editing spaces"
> > > as
> > > "working spaces" which is very common. A "Working Space" is a
> > > setting, which
> > > started with Adobe applications. It's basically a default profile,
> > > but not
> > > restricted to being a default source profile. It is also a default
> > > destination
> > > profile in certain instances.
> > > 
> > 
> > Which term would you suggest ?  "Editing Space" ?
> 
> editing space = intermediate space = workspace = "well-behaved (gray balanced,
> uniform tone response), typically a profile with simply three points to define
> the primaries, and either a gamma-based tone response or table based such as
> L*RGB, but in any event the channel tone responses are the same)". This is not
> a setting. It's contrasted to a space that isn't well behaved such as a
> scanner space.

Ok assuming the term Working Space would conflict with Adobe naming 
conventions I will rename it Editing Space. The check for well behaving
goes to the feature wish list, as it will not be done that soon.
 
> Working Space is a setting which implies it is a default source space for
> untagged images; it can be a default destination space if one is not otherwise
> specified; and it can also be be used as a default source space, when ignoring
> an embedded profile (a policy option).
> 
> 
> > 
> > 
> > > > So it would make sense to make a new default profiles field in
> > > > Oraynos:
> > > > - Untagged RGB-data. The name "Workspace Profile" should renamed
> > > > to "RGB
> > > > Workspace-Profile" CMYK Input Profile should be renamed to "CMYK
> > > > Workspace Profile" Espcialy for applications like e.g. Scribus or
> > > > Inkascape, such profile describes the appereance of CMYK-colors
> > > > generated
> > > > by the user and not only for placed content.
> > > > 
> > > 
> > > Also, "CMYK Input Profile" implies a CMYK scanner profile. An input
> > > profile is
> > > a profile for an input device. I think it's fair to say a CMYK input
> > > profile
> > > is essentially an obsolete concept today, so if it is only to be used
> > > as an
> > > assumed source profile, called it something like "CMYK default source
> > > profile". If it's to be used as an assumed or default destination
> > > profile then
> > > it should probably be called a CMYK Working Space profile.
> > > 
> > > "workspace" has the possibility of being confused with editing space,
> > > because
> > > even though it is very close to the Adobe term used for a kind of
> > > setting
> > > "Working Space" it isn't the same wording, and implies more that it's
> > > an
> > > editing space.
> > > 
> > 
> > I think this was the intention; working space == editing space.
> 
> Right, that is the convention used today, in common practice among color
> geeks. But it is very confusing to end users to refer to well behaved "editing
> spaces" as working spaces. The reason this becomes confusing is they say "well
> if I select my monitor profile, or my scanner profile in Photoshop as the RGB
> Working Space, then clearly that profile is a Working Space?! Yet the color
> expert is saying it's not a working space!"
> 
> See? It's  using the same term for two different things. Not a good idea, but
> it is in common usage.

Thanks, for pointing this out.
 
regards
Kai-Uwe Behrmann
                                + development for color management 
                                + imaging / panoramas
                                + email: ku.b at gmx.de
                                + http://www.behrmann.name